Heel stiffenee machine



(No Modal.) 3 SheetsSheet 1. E. SIIAW. HEEL STIFFENER MACHINE. No.356,335. Patented Jan. 18, 1887.

(No Modal.) 3 Shets-Sheet 2.

E. SHAW. HEEL STIF-FENER MACHINE.

Patent6d Jan. 18, 1887.

(NoModel!) 1 3 Sheets-Sheet -3. E. SHAW. HEEL STIFFENER MACHINE.

No. 356,335. Patented Jan.18, 1887.

ELTJAH SHAW, on MIL}VAUKEE,WIS.,

PATENT mon.

ASSIGNR OF ONEHALF TO CHARLES T. BRADLEY AND XVILLIAM H. METCALF, BOTHOF SAME PLACE.

HEEL-STIFFENER MACHINE.

SPECIEICA1ION forming part of Letters Patent No. 356,335, dated January18, 1887.

Application filed Avril 3, 1886. Sorial No. 197,658. (No modcl.)

T aZZ wh07n [25 7nay concern;

Be it known that 1, ELIJAH SHAW, of Milwaukee, in the connty ofMilwaukee and State VVisconsin, have invented ncW and nsefulImprovements in Machines for Forming Heel- Stiffeners; and I do herebdeclare the following to he a full, clear, and exactdescription of saidinvention, reference being had to the accompanying drawings, and to theletters or figro ures of reference marked thereon, which form a part ofthis specification.

'The object of my invention is to provide a machine that Willantomatically shape and mold a heel-stiifener, which machine operatesrapidly, reqnires but littleattention, and is not fiable to get ont 0frepair or to qnickly wear ont.

The pecnliar construction of the parts of the machine and its operationwill be nnderstood from the following description, with a reference tothe accompanying drawings,in which Figure lis a perspective of thecomplete machine. Fig. 2 is a vertical central section longitndinally ofthe machine. Fig. 3 is a plan of a portion of the forming mechanism.Fig. 4 is an nnder side view of a part of the mechanism for operaing theforming mechanism. Fig. 5 is a vertical cross-section of the machine online X X of Fig. 2, showing also 0 parts to the right of the line ofcross-section. Figs. 6, 7, S, and 10 are details. Fig. 9 is a verticalcross-section of the presser-head.

The same letters refer to like parts in all the Views, and arrowsindieate the direction of the 3 motion of the wheels.

The operative mechanism is all snpported on a rigid frame, A. A former,I, is affixed rigidly to the top of the frame, near one end centrally,and projects inwardly on the top of 0 the frame.

same thickness as the height of the to-be-made heelstiffener, and itshorizontal shape at the front or inner end is about that of the hee1 ofa small-sized hn man foot, gradnally narrowing somewhat horizontally inthe rear of the front wider part, thns making it still further tocorrespond with the form of the human foot. The former is corrngatedvertically, whereby it grasps and holds the stiffener firmly while beingshaped.

This former is vertically about the On the top of the frame, in front ofthe former 1, are two molding or shaping jaws, 2 2, which are pivoted attheir rcar ends on a slide, 3, so as to have a horizontal movement oftheir front ends. The front ends of these 5 jaws 2 2 are held togethcragainst each other yieldingly by imvardlypressing springs 4 4, affixedto the rear end of the jaws and bearing against a pin in the slide. Thefront ends of thejaws 2 2 are ont ont or recessed, forming a mold orshape, 5, adapted to receive and fit closely to the former 1. This moldor shape is out equally from each of the two jaws 2 2, and is preferablylined with a sheetmetal spring-lining, 6, affixed atits onterends to theouter front ends of the jaws, and fits snugly to the inside of the moldwhen the jaws are held together,and has snflicient elasticity to permitthe jaws to separate slightly, so that the narrower front end of theshape 5 may pass the wider front end of the former 1 when the jaws arepressed up to and against the former 1, as will be hereinafterdescribcd.

The slide 3, carrying the jaws 2 2, has a reciprocating movement forwardand back on 7 the frame, and is operated as follows: The drivingshaft-7,on which is the power-receiving band-wheel 8, is provided Wth a pinion,9, meshing with the gear-wheel 10, snpported on and rotating with anarbor having bearings in the frame. A pitman, 11, connects thegear-wheel 10 With the sector-gear 14. The pitman 11 has a slot, 12,Fig. 8, in which a sliding block receiving wrist-pin 13, eccentric ongear-wheel 10, fits and slides, carrying the 8 pitman; but by the slot12 a certain amonnt of lost motion betwecn the gear-wheel 10 andsector-gear 14. is provided for. The sec tor-gear 14, oscillating on ashaft, 15, supported in the frame, meshes with pinion 16, supported androtating on an axle, 17, having its bearings in lugs 18 18,projectinginwardly, one on eachside of the pinion,from the under side of the slide3. The pinion 16 meshes with straight rack 19, which rack is snpportedon the frame A and is adapted to be alternately connected rigidly to andmovable in this frame. This rack 19 is snpported in dovetailed ways 20on each side rigid to the nnder side of the top of the frame, and inthcse ways IOO the raek bas a reeiproeating endwise 1novement. Rigid onits front end this raek 19 has a head-pieee, 21, t0 whieh theeonnectingrods 22 22, one on eaeh side, are pivoted, whieh rods, attbeir rear ends, are pivoted in one end, respeetively, to the shortlever-arms 23 23, which arms, at their otherends, are each rigid t0 apivoted bolt, 24, which bolts pass np throngh and turn in the top of theframe,

and carry gid1y on their respective npper ends the lever-arrns 25 25,the free ends of whieh extend inwardly and are adapted to bear againstthe onter sides of the jaws 2 2, near their front ends, and close thesejaws tightly against the former 1.

To obviate binding, the arn1s 25 25 are provided with anti-frietionwheels 26 26 in their free inner ends, wbieh impinge against the jaws 22. A pin, 27, having endwise movement, passes through one of the flangesforming the rigid way 20, and enters an aperture therefor in the rack19. The pin at its onter end is snpported in a 111g, 28, rigid on theframe. About this pin 27, and rigid thereto, jnst outside of the way 20,is a oollar, 29, and around the pin, between collar29 and 1ng 28, is acoiled spring, 30, bearing against the collar and 111g at its respectiveends, whereby the pin is pnshed forward, so that its inner end entersthe raok, as provided for, and holds the raek in position. An arm, 31,affixed at its rear end to the nnder side of the slide 3, extendsforwardly, and is provided at its front end with beveled fingers adaptedto impinge against the insideof collar 29 and force the pin 27 ont ofthe raek 19.

It will be seen that as the wheel 10 rotates (from the position shown inFig. 2) it Will force the seetor-gear 14 forward, and Will thereby carryslide 3 forward,so that the jaws 2 2 will inclose the former 1 in therecess 5, and just at the, moment that the jaws come to this positionthe arm 31 will withdraw the pin 27 from the raek 19, and the raek beingthen free to move endwise will, by the slightiy-eontinued motion of thesector-gear 14, be moved to the rear, throwing the arms 25 25 aronndagainst the ends of the jaws 2 2 and pressing them firmly against theformer 1,and by the continned rotation of wheel 10, after the lostmotion provided for by slot 12 in pitman 11 has been had, the raek 19Will, by the reverse motion of the seetor-gear, be first earried forwardnntil the head 21, Fig. 2, strikes the frame, when the slide 3 will beforeed baek, the pin 27 re-entering the rack as soon as the fingers onarm 31 are withdrawn from beneath the eollar 29.

To form the inwardly-extending flange at the bottom of theheel-stiffianer, a reciprooating presser is provided. This presser isconstrncted of a bar or beam, 32, extending horizonta1ly across themachine above the jaws 2 2 and former 1, and at each of its ends it hasan arm,33, affixed eentrally and rigidly thereto, which arm 33 ispivoted at eaoh end to downwardly-extending snpporting-rods 34 34, whiehrods, at their lower ends, are pivoted to a horizontal arm, 35,which arm35 is centrally supported on a shaft or arbor snpported on the frame A.By thus supporting the beam 32 it may be oscillated to the front andrear,and the bottom face of the beam romains constantly in a horizontalplane, or parallel with the top of fra1ne A.

Jnst beneath the beam 32, centrally, is a pressenfoot, 36, Fig. 10,whieh foot bas au in wardlyrurved front end, and is also provided with alaterally-extending horizontal roller, 37, in a recess tberefor in thepresser -foot. This roller 37 bas journals at eaeh end, having theirbearings in the walls of the presserfoot 36. Extendingnpwardlyrigidlyfiom the presser-foot is a stem, 38, which is providedWith a rigid collar or shoulder, 39, about it 313 and just above thepresser-foot, whieh eollar 39 enters and fits in the lower end of achamber, 40, formed in and above the beaux 32, in the top of the wallsof .whieh chamber a serewthreaded tension-mat, 41, is fitted and tnrns.The stem 38 extends upwardly throngh and is gaided by the tension-'nnt41, and a spring, 42, eoiled aronnd stem 38, is inserted between theeollar 39 and tension-mat 41. The roller 37 travels on and bears againstthe top of the jaws 2 2, and is held steadily down toits work by thespring 42. Two guide pins, 43 43, extending rigidly npward :irom the topof the presser-foot 36, enter apertures thereior in the beam 32 and keepthe presser-foot in position relative to the beam, permitting only aslight vertical movement as the beam 32 oscillates forward and baok onthe rods 34.

The pressenbeam 32 is piv0ted to one end ofthe eonneeting-rod 44, whichrod,at its other extremity, is pivoted eecentrically to the rotatingfrietion-disk 45, which frietion-disk is provided with a rigid arbor,46, Fig. 5, extending rearward and having bearings and rotating in theframe A. This disk and its arbor 46 have no lateral motion, they beingconfined t0 a rotary motion by a nnt on the arbor on the outside of theframe and a eollar rigid on the arborjnst inside of the frame. Africtionwheel, 47, andapinion, 48,affixed thereto, are supported androtate on the arbor 46. 'lhe rim of the wheel 47 projeets ontwardly overand about the periphery of the disk 4.5, the inside of the rirn and theperiphery of the disk being correspondingly beveled, so as to fitagainst and clnteh each other when bronght into contact by meohanismhereinaiter described. The frietion-wheel 47 and pinion 48 have a slight1ateral movement on the arbor- 46, whioh is prodnced by and throngh anarm, 49, rigid at one end on the reciproeating rod 50, the forked end ofwhieh mm 49 rides in a groove, 51, about the bub of the pinion and wheel48 47. The rod 50 is supported and has reciprooal motion endwise inbearings in the frame A, and has a eoiled spring, 52, about it insertedbetween the frame and a eollar on the rod, whieh spring,by and throughthe arm 49, rigid on the rod, forces the whee147 and pin LIS ion 48 backaway from the disk 45. A lever, 53, pivoted at its lower end to theframe, is at its upper end attached to the rod 50. This lever 53 isprovided centrally with a bearingwheel, 54, which impinges againstasegmental guard or way-strip, 55, affixed to the side of the wheel 10,whereby when the wheel54isin contact with the waystrip 55 the rod 50 isforced forward, overpowering spring 52, and the wheel 47 is brought intocontact with the disk 45. The pinion 48 meshes with the gearwheel 56,rigid on the driving-shait 7.

It will be seen that the friction-wheel 47 rotats constantly when thedriving-shaft 7 isin motion, and that while the lever 53 is in contactwith the way-strip 55 the wheel 47 Will be held np against the disk 45,whereby a reciprocating motion will be imparted to the presser. A1ug,57, on disk 45, is adapted to impinge against and lie npon the onterfree end of a coiled-spring buffer, 58, contained in a case affixed tothe reciprocating rod 50, which buffer is withdrawn from the line ofmotion of the lug 57 as the wheel 47 is thrown into contact with thedisk 45, and is retnrned t0 position in front of the lng as the wheel 47and disk 45 are separated.

On the top of the frame, just in front of the former 1, is provided apair of holders adapted 'to receive and hold the leather of which thestiftener is to be formed. Thes holders are convenient for use with somekinds of leather, but are not necessary for the perfect working of themachine ordinarily. These holders consist each of an inwardly-projectingbifurcate finger, 59, adjnstably attached at its re ar end to the top ofthe lrame, jointed centrally, and having the free inner bifurcate endsflattened vertically, so as to be adapted to receive and hold uprightthe leather strip between the bifurcate ends. These fingers are a littledistance apart, so that the strip of leather of which the stiffener isto be fornied may be set within them, extending from one to the other infront of the former 1, and as thejaws 2 2 are moved forward to and aboutthe former the front ends of the jaws will strike against the leatherand the inner ends of these fingers 59, and Will swing them bac]; ontheir joints, as indicated by dotted limes in Fig. 3, and the leather bythe forward movement of the jaws will be withdrawn from the fingers asit is forcedaronnd theformer. A small spring, 60,

- in front of each of these fingers, forces it back to position as thejaws are drawn back. The motion of this machine is such that when thewheel 10 comes to the position shown in Fig. 2 there is then lost motionin the pitmanmoved meehanism until the wrist-pin therein moves to theinner end of slot 12 in the pitman, and during this time, the presserbeing at the rear end of its travel and not over the former 1, theleather for a stifiener is inserted in the holders 59 59, and whenthewheel 10 has made a half-revolution, carrying the wristpin forward tothe opposite or front side, the jaws 2 2 have been forced forward aboutthe former 1, and the guide 55 enters under the lever 53, throwing thefriction-wheel 47 into contact with the disk 45, whereby the presser isgiven its reciprocating motion, of which there are eight strokes, whilethe lost motion between wheel 10 and the pitman occurs as the wrist-pinon the wheel passes from one end to the other of the slot in the pitman.

It will be understood that thestrip of leather of which the stiffener isformed is wider than the height of the former 1, and that after it isplaced in the holders 59 it is first bent around the former by thejaws 22, and the part projeeting above the former is, when the presser is setin motion, tnrned inwardly by the curved front end of the presser-foot36, and, as the presser-foot passes and repasses over it, is

pressed down,,forming the inwardly-projecting flange of the stiffener.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a machine for manufacturing heelstiffeners, a stationary former,in combination with two swinging shapingjaws closed yieldingly bysprings and pivoted on a movable slide provided with mechanism wherebythe jaws are moved up to and withdraWn from the former, and areciprocating presser perated independently of the slide-movingmechanism, all arranged and operating substantially as described.

2. In a heel-stiffener machine, the stationary former 1, in combinationwith the movable jaws 2 2 and the adjustable jointed holders 59,substantially as described.

3. In a heel-stiffener machine, the movable jaw-snpporting slide 3, incombination with and operated by a rack, pinion, sector-gear, and pitmanprovided with a slot and attached to the wrist-pin of a wheel, whereby arecip rocal movement with a certain amount of1ost motion is secured,substantially as described.

4. In a heel-stiffener machine, the rack 19, construete d to travel inways in the frame and operated by snitable mechanism, in combinationwith the swinging arms 25, connected to the rack by pivoted rods, andthe movablejaws 2 2, substantiall y as described.

5. In a heel-stiffener machine, the rack 19,

constructed to travel in ways on the frame, with the thereto-eonnectedand thereby-operated arms 25 and the spring-actuated boit 27, incombination with the movable slide 3, provided with arm 31, and thepinion'16, supported and rotating in lugs rigid on the slide 3, whichpinion meshes with and is operated by an oscillating sector-gear,snbstantially as deseribed.

6. In a heeI-stiftener machine, the presserarm 32, provided with achamber, 40, for the reception of the stem of the presser-foot, incombination with the presser-foot 36 and the therein-rotating roller 37,snbstantially as described.

7. In a heelstiftener machine, the presser: arm'32, supported on rods 3434, to which it is pivoted in their npper ends, which rods are pivotedand supported at their lower ends on the frame, substantially asdescribed.

8. In a heel-sbffener machine, the arm 32, supported and oscillating onrods 34 34, in combination With the presser-foot 36, having stem 38, andthe spring 42, snbstantially as described.

9. In a heel-stifi'cner machine, the gearwheel 56, rigid on thedi'iVingshaFt, bhe frictionwheel 47, 1igid t0 pini0n 48, meshing wihhgeanwheel 56, and frictiondisk 45, provided Wibh a rigid arb0r, 46,which supports pinion 48 and whee147, in combination Wibh reeiprocatingrod 50, which carries the rigid finger 49, which rod is actuated by aspiral spring, 52, and a cam-acbuated lever, 53, substantiaily as andfor the purpose described.

10. In a heel-stiffener machine, che gearwheel 10, provided with asegmental guide or way-strip, 55, in combination With the lever 53,provided With a bearing, 54, in combina bien With the reciprocabing rod50 and the aetnating-spring 52, substantially as described.

11. In a heel-sbiffener machine, the Iug 57, rigid on the disk 45, incombination with the buer 58, attached to the reciprocating rod 50,substantially as described.

12. In a hee1-stitfener machine, a presser athached by a e0nneeting-rod,44., eccentrically t0 a friction-disk, 45, in combination Wibh lever 53,bearing intermitbingly against 3. guide, 55, on wheel 10, thetherebyacbuated reciprocating rod 50, provided with spring 52 and finger49, and the frictiomwheel 47, gnided by fmger 49, and geared to thedriving-shafb of the machine, whereby a reciprocating motion is 0btainedintermittingly by the presser, substanbially as described.

13. In a heel-sbiflener machine, a reciprocating presser-foot, 36,provided with an inwardly-curved front end, and a horizontallyrotatingr0l1er, 37, substantially as described.

14. In a heel-sLifiener machine, the presserarm 32, having a chamber,40, in combination with the presser-foot 36, provided with a stemadapted to enter chamber 40, and a spring, 42, adj usted by mat 41,snbstantially as described.

In testimonywhereof I afiix my signature in presence of two witnesses.

ELIJAII SH AWV.

VVitnesses:

C. T. BENEDICT, J AS. B. ERWIN.

